Something very strange happening now... the plugin is not listed anywhere in the 'Plugins section of the Dashboard. I did a search and then tried to 'Add New but it says the plugin is already installed. So it is installed but nowhere to be found.
EDIT: I just checked and it IS listed in my cPanel plugins folder. I deleted the audio player folder, re-installed in the WP Dashboard and now it shows up in the Plugins area. However, I tried uploading/inserting an mp3 into a product post, but nothing shows up on my site. I also tried inserting the full link path directly into the post, didnt work. After attempting both methods, it actually caused two more problems for me, now the product image has been removed and my other product pages lost the previous audio player (just a blank area on the page). After deactivating mb.miniAudioPlayer plugin my old audio player (Haiku) is working again, but the default product image is still missing.
The examples of your plugin look great, exactly the functions and look I want, but unfortunately, its causing too many problems for my site. Unless I'm missing something or doing it wrong and you have some suggestions on how to fix these issues, I'm affraid I'll just have to delete it and continue using what already works.